function layerPop(div)
{


	if (document.getElementById)
	{
	
		var alerttoshow = document.getElementById(div).style;
		alerttoshow.display = alerttoshow.display? "":"block";
		
		var screenoverlay = document.getElementById('overlay').style;
		screenoverlay.display = screenoverlay.display? "":"block";
		
	}
	else if (document.all)
	{
		var alerttoshow = document.all[div].style;
		alerttoshow.display = alerttoshow.display? "":"block";
		
		var screenoverlay = document.all[div].style;
		screenoverlay.display = screenoverlay.display? "":"block";
	}
	else if (document.layers)
	{
		var alerttoshow = document.layers[div].style;
		alerttoshow.display = alerttoshow.display? "":"block";
		
		var screenoverlay = document.layers[div].style;
		screenoverlay.display = screenoverlay.display? "":"block";
		
	}
	
	
}